Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791963 | Flexible tube with mutually parallel, ring-shaped flutes and axial support | Heinz Gronert, Johann Pichler, Reinhard Gropp | 1988-12-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791963 | Flexible tube with mutually parallel, ring-shaped flutes and axial support | Heinz Gronert, Johann Pichler, Reinhard Gropp | 1988-12-20 |